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Steven Rostedt (Red Hat) 3fdaf80f4a tracing: Implement event pid filtering
Add the necessary hooks to use the pids loaded in set_event_pid to filter
all the events enabled in the tracing instance that match the pids listed.

Two probes are added to both sched_switch and sched_wakeup tracepoints to be
called before other probes are called and after the other probes are called.
The first is used to set the necessary flags to let the probes know to test
if they should be traced or not.

The sched_switch pre probe will set the "ignore_pid" flag if neither the
previous or next task has a matching pid.

The sched_switch probe will set the "ignore_pid" flag if the next task
does not match the matching pid.

The pre probe allows for probes tracing sched_switch to be traced if
necessary.

The sched_wakeup pre probe will set the "ignore_pid" flag if neither the
current task nor the wakee task has a matching pid.

The sched_wakeup post probe will set the "ignore_pid" flag if the current
task does not have a matching pid.

Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2015-10-25 21:33:56 -04:00
..
acpi ACPI: Eliminate CONFIG_.*{, _MODULE} #ifdef in favor of IS_ENABLED() 2015-09-15 03:05:45 +02:00
asm-generic Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm 2015-09-19 19:13:03 -07:00
clocksource
crypto Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security 2015-09-08 12:41:25 -07:00
drm Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2015-09-04 15:49:32 -07:00
dt-bindings Merge branch 'drivers/reset' into next/late 2015-09-09 15:42:45 -07:00
keys PKCS#7: Appropriately restrict authenticated attributes and content type 2015-08-12 17:01:01 +01:00
kvm arm/arm64: KVM: Remove 'config KVM_ARM_MAX_VCPUS' 2015-09-17 13:13:27 +01:00
linux tracing: Implement event pid filtering 2015-10-25 21:33:56 -04:00
math-emu
media media updates for v4.3-rc1 2015-09-11 16:42:39 -07:00
memory
misc cxl: Allow the kernel to trust that an image won't change on PERST. 2015-08-14 21:32:07 +10:00
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 2015-09-10 13:53:15 -07:00
pcmcia
ras
rdma Changes for 4.3-rc1 2015-09-19 20:04:11 -07:00
rxrpc
scsi Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-09-11 19:00:42 -07:00
soc IOMMU Updates for Linux v4.3 2015-09-08 17:22:35 -07:00
sound ALSA: hda - Fix missing inline for dummy snd_hdac_set_codec_wakeup() 2015-09-02 12:24:55 +02:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-09-11 19:00:42 -07:00
trace tracing: gpio: Add Kconfig option for enabling/disabling trace events 2015-10-20 21:56:10 -04:00
uapi Merge branch 'akpm' (patches from Andrew) 2015-09-11 19:34:09 -07:00
video libnvdimm for 4.3: 2015-09-08 14:35:59 -07:00
xen xen: MFN/GFN/BFN terminology changes for 4.3-rc0 2015-09-10 16:21:11 -07:00
Kbuild